In this blogpost, I’ll share 15 low-calorie foods and a few simple, science-backed tips that support weight loss, reduce bloating, and help flatten your stomach.
Because let’s be real… everyone wants a flatter stomach. But starving yourself or doing endless sit-ups is really not the answer. The truth is, what you eat matters. And some foods can help you get leaner with barely any calories.
Before we get started, let’s clear something up. Technically, all foods have some calories. However the ones on this list are so low, your body might burn more calories digesting them than they actually contain. Wild, right? That’s why people call them ‘zero-calorie’ foods.
Alright, let’s dive in!
Top Zero Calorie Foods – The Top 15 Power Foods You Should Eat More Often
1. Cucumber
Cucumbers are basically water in veggie form – about 96% water, to be exact. And about 14 calories in 100 grams.
Their high water content helps flush out excess sodium and ease bloating, which makes you feel lighter. So, if you’re looking to flatten your stomach, cucumbers can really help.
Research has also shown they may help control and reduce blood sugar levels, which can help reduce hunger cravings. Because high blood sugar causes high sugar cravings.
And not to mention, they’re crisp, delicious, and super easy to use. Toss them in a salad, add a few slices to your water, or just snack on them with some lemon and a pinch of salt. You can even use them as a base for high-protein meals like tuna or chicken salad. Light, satisfying, and super practical.
2. Watermelon
Next up is watermelon – and yes, it can be part of a flat-stomach plan. It is very low in calories for a fruit, containing about 30 calories in 100 grams.
As the name suggests, it’s high in water content, which helps you to feel full. This is because it activates your stomach’s stretch receptors which signals to your brain that it’s full, controlling your hunger levels.
The high water content also helps to flush out excess salt and reduce water retention, making you feel lighter and less puffy.
I love watermelon because it’s mildly sweet, and super satisfying without packing on the calories. 100 grams of watermelon has 392 less calories compared to a 100 gram cookie. So next time you want a sweet treat, try some watermelon!
3. Celery
Number 3, celery, is a classic. There are only 16 calories in 100 grams of celery making it a super low calorie food!
It’s loaded with water and fiber, and here’s the fun part – it actually takes more energy to chew and digest than it gives you in calories.
While that’s a bit of a myth in extreme cases, celery really does support digestion and keeps you full without adding much to your daily intake.
4. Lettuce
At number 4, we’ve got iceberg lettuce, with only 7 calories per cup. It’s easily overlooked, but actually a solid pick when you’re aiming for a flatter stomach.
Lettuce is super low in calories, high in water, and gives you a decent amount of fiber, vitamin K, folate, and provitamin A. Plus, it adds bulk to your meals, which helps you feel full without racking up calories.
Use it in wraps, toss it into bowls, or layer it into sandwiches. You can also replace burger buns with lettuce for a bunless burger! Eating lettuce is an easy way to eat more and fill your tummy, without the extra calories.
5. Zucchini
Zucchini is one of those veggies that quietly does it all.
It’s about 94% water, so it helps with hydration while being super low in calories – around 17 calories per 100 grams.
It’s also rich in antioxidants and contains small amounts of vitamin C and potassium.
But the best part is that it’s incredibly versatile. You can use it to replace pasta, which is a very high calorie carb. Spiral it into noodles and add your favorite pasta sauce for a super low carb meal.
You can also grill it, roast it, or even throw it into the air fryer with some olive oil and spices. It’s perfect for volume eating, adding bulk and texture to meals, keeping calories and carbs low, and leaving you feeling full.
Definitely a go-to if you’re watching your waistline.
6. Tomatoes
Tomatoes aren’t just for sauces – they’re low in calories and packed with antioxidants such as Vitamin C, and lycopene, which helps fight inflammation. That’s huge if you deal with bloating.
100 grams of tomatoes only contains a mere 18 calories!
They’re great raw, roasted, or tossed into pretty much any meal. And tomato soup is another tasty, low calorie meal option.
7. Broccoli
Number 7, broccoli is a flat-stomach superstar – and way more powerful than it looks.
It’s a cruciferous vegetable, which means it’s packed with nutrients and fiber that support digestion and help you stay full longer.
Just one cup of cooked broccoli has only about 54 calories, but gives you more than your daily dose of vitamin C. Not bad, right?
Plus, eating more cruciferous veggies like broccoli has been linked to a lower risk of heart disease and even some cancers. Whether you steam it, roast it, or toss it in a stir-fry, it’s always a smart choice.
8. Cauliflower
Number 8 is Cauliflower. If you’re cutting carbs or calories, it’s super low in both – just 40 calories and about 8 grams of carbs per cup of cooked cauliflower. Super low in calories but still feels hearty.
It can also be used to create low carb meals such as cauliflower rice and cauliflower pizza bases, replacing traditional wheat and cutting the calories and carbs.
You can also add it to mash potato to lower the calorie content, or simply have it roasted with olive oil and salt and pepper. And it’s not just white… cauliflower actually comes in purple, orange, and yellow varieties too.
Beyond being low in calories, it’s rich in fiber and antioxidants that help reduce inflammation and support digestion – both big wins for a flatter belly.
9. Spinach
At just 7 calories per cup, spinach is one of the most nutrient-dense foods you can eat.
Don’t let its low calorie count fool you. It’s packed with vitamin K, folate, provitamin A, and antioxidants like lutein and zeaxanthin that are great for your eyes.
It blends right into smoothies, salads, omelets… you name it. It’s light, versatile, and a smart choice if you’re trying to slim down without missing out on nutrition.
10. Mushrooms
Next in line, mushrooms! They might not be the first thing you think of for a flatter stomach, but they’re surprisingly helpful.
They’re super low in calories at just 22 calories per 100 grams, naturally low in sodium, and packed with nutrients like vitamin D and antioxidants that help fight inflammation.
Plus, they support gut health thanks to prebiotics – which can reduce bloating and keep digestion on track.
11. Apple
Next up is apple. Apples are one of the easiest, most satisfying snacks out there. And they’re great if you’re watching your waistline.
100 grams of sliced apples has around 52 calories, but it’s packed with fiber to help keep you full and curb cravings. Plus, you get a boost of vitamin C, vitamin E, and even a little zinc – all good for your skin, immune system, and overall health.
You can sauté them, toss them into salads, or even use them to replace meat in some recipes. Light, satisfying, and easy to work into any meal – mushrooms are a quiet powerhouse when it comes to feeling lighter.
12. Radish
Radishes are one of those underrated veggies that quietly do a lot. Crunchy, colorful, and with just the right kick.
They’re super low in calories, with just 16 calories per 100 grams. And super high in potassium, Vitamins B6 and Vitamin C, which can support hydration and digestion.
Their natural bite makes them great for livening up salads or bowls without adding much to your calorie count.
If you’re after something crisp, colorful, and a little different, radishes are an easy way to add texture and nutrients while keeping things light.
13. Cabbage
At number 13 is cabbage which is a flat-belly-friendly food that deserves more love.
It’s super low in calories, just 22 per cup, but packed with fiber to keep you full and support digestion.
As a cruciferous veggie, it also brings plant compounds that may help reduce inflammation. You can enjoy it raw in slaws, cooked into stir-fries or soups, or fermented as sauerkraut or kimchi for an extra gut health boost. It’s cheap, versatile, and fits into just about any meal.
14. Strawberries
Number 14 is strawberry. Few things feel as fresh as a bowl of strawberries. With just 53 calories per cup, they’re light, naturally sweet, and loaded with vitamin C.
You can toss them into salads, blend them into smoothies, or enjoy them on their own.
And beyond the taste, studies suggest berries like strawberries may even support long-term brain health. Sweet, simple, and good for you – what’s not to love
15. Pickles
Last on the list – pickles. They’re super low in calories at 17 calories per 100 grams, and can be a lifesaver when you’re craving something salty.
Pickles are fermented in brine, so they are great for your gut health thanks to the presence of probiotics.
Just watch the sodium if you’re prone to bloating. Choose the low-sodium kind if possible, and enjoy in moderation.
Other Important Tips for a Flat Stomach: Focus on Top Zero Calorie Foods
Alright – those low-calorie foods can definitely help, but let’s be clear: getting a flat stomach isn’t just about what you eat. There are a few other things that really make a difference.
Calorie Deficit, Overall Weight Loss, and the Role of Top Zero Calorie Foods
First up – you can’t spot reduce belly fat. Your body loses fat from everywhere, not just your stomach. That means you need to be in a calorie deficit – burning more than you consume. A healthy, balanced diet paired with that slight calorie deficit over time is the real key to shedding belly fat.
Exercise Regularly and Pair It with Top Zero Calorie Foods for Better Results
Next – move your body! A mix of cardio and strength training is ideal. Cardio helps burn calories, while strength training builds lean muscle, which boosts your metabolism and helps shed fat from your tummy.
Sleep & Stress Management: Why They Matter as Much as Choosing Top Zero Calorie Foods
Now here’s something a lot of people overlook – sleep and stress. Poor sleep and high stress levels raise your cortisol, a hormone that actually encourages fat storage around your belly. Try to get 7 to 9 hours of quality sleep, and find ways to manage stress – like meditation, walking, or just doing something you enjoy every day.
Gut Health and the Role of Top Zero Calorie Foods
Last but not least – gut health. A lot of what we think is belly fat is actually just bloating. Supporting your gut with fermented foods like yogurt, kimchi, or even a probiotic supplement can really help. And good news – many of the veggies we listed earlier are high in fiber, which also feeds healthy gut bacteria.
If you need a little extra help on your journey, check out our Fit In 15 Program. It incorporates 15 minute strength training workouts to get a flat stomach in just 15 minutes per day. Plus our Femme Nativa app comes with a tailored meal plan and recipes to help you lose weight.
Check out these additional tips that could help you!
https://www.rachaelattard.com/negative-side-effects-low-calorie-diets/
It’s FREE